I am a very happy chappie !

I managed to recompile the bootloader to use alternative LED pins. One thing to be aware of is that there are now two bootloader codebases that Microchip provide. One is the HID bootloader, the other is one that will work with the MPUSB application.

I tried the HID bootloader, but got some weird results, so instead modified the MPUSB bootloader which uses the custom Microchip driver. This allows me to continue to use the PICDEM FS Demo Board application to bootload my code.

All good ! Also learned more about MPLAB and C coding than I think I ever wanted to know...

bill.